From: Michal Kubecek <mkubecek@suse.cz>
To: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>,
Jiri Pirko <jiri@resnulli.us>, Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
John Linville <linville@tuxdriver.com>,
Stephen Hemminger <stephen@networkplumber.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH net-next v5 01/22] rtnetlink: provide permanent hardware address in RTM_NEWLINK
Date: Mon, 25 Mar 2019 18:07:57 +0100 (CET) [thread overview]
Message-ID: <16ffb1fbfa8f54de587ac52f4ff95e5034c590b4.1553532199.git.mkubecek@suse.cz> (raw)
In-Reply-To: <cover.1553532199.git.mkubecek@suse.cz>
Permanent hardware address of a network device was traditionally provided
via ethtool ioctl interface but as Jiri Pirko pointed out in a review of
ethtool netlink interface, rtnetlink is much more suitable for it so let's
add it to the RTM_NEWLINK message.
As permanent address is not modifiable, reject userspace requests
containing IFLA_PERM_ADDRESS attribute.
Note: we already provide permanent hardware address for bond slaves;
unfortunately we cannot drop that attribute for backward compatibility
reasons.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
---
include/uapi/linux/if_link.h | 1 +
net/core/rtnetlink.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 5b225ff63b48..351ef746b8b0 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -167,6 +167,7 @@ enum {
IFLA_NEW_IFINDEX,
IFLA_MIN_MTU,
IFLA_MAX_MTU,
+ IFLA_PERM_ADDRESS,
__IFLA_MAX
};
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index a51cab95ba64..a72e8f4d777b 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1026,6 +1026,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev,
+ nla_total_size(4) /* IFLA_CARRIER_DOWN_COUNT */
+ nla_total_size(4) /* IFLA_MIN_MTU */
+ nla_total_size(4) /* IFLA_MAX_MTU */
+ + nla_total_size(MAX_ADDR_LEN) /* IFLA_PERM_ADDRESS */
+ 0;
}
@@ -1683,6 +1684,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
nla_put_s32(skb, IFLA_NEW_IFINDEX, new_ifindex) < 0)
goto nla_put_failure;
+ if (nla_put(skb, IFLA_PERM_ADDRESS, dev->addr_len, dev->perm_addr))
+ goto nla_put_failure;
rcu_read_lock();
if (rtnl_fill_link_af(skb, dev, ext_filter_mask))
@@ -1742,6 +1745,7 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_CARRIER_DOWN_COUNT] = { .type = NLA_U32 },
[IFLA_MIN_MTU] = { .type = NLA_U32 },
[IFLA_MAX_MTU] = { .type = NLA_U32 },
+ [IFLA_PERM_ADDRESS] = { .type = NLA_REJECT },
};
static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
--
2.21.0
next prev parent reply other threads:[~2019-03-25 17:10 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-25 17:07 [PATCH net-next v5 00/22] ethtool netlink interface, part 1 Michal Kubecek
2019-03-25 17:07 ` Michal Kubecek [this message]
2019-03-26 10:08 ` [PATCH net-next v5 01/22] rtnetlink: provide permanent hardware address in RTM_NEWLINK Jiri Pirko
2019-03-26 10:31 ` Michal Kubecek
2019-03-26 11:38 ` Jiri Pirko
2019-03-26 19:46 ` David Miller
2019-03-25 17:08 ` [PATCH net-next v5 02/22] netlink: introduce nla_put_bitfield32() Michal Kubecek
2019-03-26 10:09 ` Jiri Pirko
2019-03-28 1:56 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 03/22] netlink: add strict version of nla_parse_nested() Michal Kubecek
2019-03-26 10:11 ` Jiri Pirko
2019-03-28 1:57 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 04/22] ethtool: move to its own directory Michal Kubecek
2019-03-26 10:14 ` Jiri Pirko
2019-03-28 1:57 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 05/22] ethtool: introduce ethtool netlink interface Michal Kubecek
2019-03-26 12:09 ` Jiri Pirko
2019-03-26 13:24 ` Michal Kubecek
2019-03-26 13:42 ` Jiri Pirko
2019-03-27 9:26 ` Michal Kubecek
2019-03-27 9:50 ` Jiri Pirko
2019-03-28 2:05 ` Florian Fainelli
2019-03-28 8:10 ` Jiri Pirko
2019-03-28 9:37 ` Michal Kubecek
2019-03-28 13:23 ` Jiri Pirko
2019-03-28 17:00 ` Florian Fainelli
2019-03-28 17:28 ` Jiri Pirko
2019-03-26 16:36 ` Jiri Pirko
2019-03-26 17:32 ` Michal Kubecek
2019-03-27 9:26 ` Jiri Pirko
2019-03-25 17:08 ` [PATCH net-next v5 06/22] ethtool: helper functions for " Michal Kubecek
2019-03-26 12:38 ` Jiri Pirko
2019-03-26 14:19 ` Michal Kubecek
2019-03-26 16:22 ` Jiri Pirko
2019-03-25 17:08 ` [PATCH net-next v5 07/22] ethtool: netlink bitset handling Michal Kubecek
2019-03-26 15:59 ` Jiri Pirko
2019-03-26 17:59 ` Michal Kubecek
2019-03-27 9:57 ` Jiri Pirko
2019-03-27 10:19 ` Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 08/22] ethtool: support for netlink notifications Michal Kubecek
2019-03-26 16:34 ` Jiri Pirko
2019-03-26 18:17 ` Michal Kubecek
2019-03-27 9:38 ` Jiri Pirko
2019-03-27 9:51 ` Andrew Lunn
2019-03-27 10:04 ` Jiri Pirko
2019-03-27 10:16 ` Andrew Lunn
2019-03-27 10:41 ` Jiri Pirko
2019-03-27 9:59 ` Michal Kubecek
2019-03-27 10:43 ` Jiri Pirko
2019-03-25 17:08 ` [PATCH net-next v5 09/22] ethtool: implement EVENT notifications Michal Kubecek
2019-03-27 13:04 ` Jiri Pirko
2019-03-27 14:14 ` Michal Kubecek
2019-03-28 2:14 ` Florian Fainelli
2019-03-28 6:41 ` Michal Kubecek
2019-03-28 9:16 ` Jiri Pirko
2019-03-25 17:08 ` [PATCH net-next v5 10/22] ethtool: generic handlers for GET requests Michal Kubecek
2019-03-27 16:35 ` Jiri Pirko
2019-03-27 21:53 ` Michal Kubecek
2019-03-28 13:32 ` Jiri Pirko
2019-03-25 17:08 ` [PATCH net-next v5 11/22] ethtool: move string arrays into common file Michal Kubecek
2019-03-28 2:17 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 12/22] ethtool: provide string sets with GET_STRSET request Michal Kubecek
2019-03-27 20:12 ` Jiri Pirko
2019-03-27 22:56 ` Michal Kubecek
2019-03-29 8:43 ` Jiri Pirko
2019-03-28 2:25 ` Florian Fainelli
2019-03-28 7:18 ` Michal Kubecek
2019-03-28 13:43 ` Jiri Pirko
2019-03-28 14:04 ` Michal Kubecek
2019-03-28 17:35 ` Jiri Pirko
2019-03-28 18:52 ` Jakub Kicinski
2019-03-28 20:43 ` Michal Kubecek
2019-03-28 21:06 ` Jakub Kicinski
2019-03-29 6:52 ` Jiri Pirko
2019-03-28 22:28 ` Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 13/22] ethtool: provide driver/device information in GET_INFO request Michal Kubecek
2019-03-27 20:14 ` Jiri Pirko
2019-03-27 22:25 ` Michal Kubecek
2019-03-28 2:30 ` Florian Fainelli
2019-03-28 9:21 ` Jiri Pirko
2019-03-28 9:53 ` Michal Kubecek
2019-03-28 16:34 ` Jiri Pirko
2019-03-28 20:09 ` Jakub Kicinski
2019-03-28 22:46 ` Michal Kubecek
2019-03-29 18:48 ` Jakub Kicinski
2019-03-29 18:53 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 14/22] ethtool: provide timestamping " Michal Kubecek
2019-03-28 3:36 ` Florian Fainelli
2019-03-28 10:03 ` Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 15/22] ethtool: provide link mode names as a string set Michal Kubecek
2019-03-28 3:52 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 16/22] ethtool: provide link settings and link modes in GET_SETTINGS request Michal Kubecek
2019-03-28 3:44 ` Florian Fainelli
2019-03-28 10:04 ` Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 17/22] ethtool: set link settings and link modes with SET_SETTINGS request Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 18/22] ethtool: provide link state in GET_SETTINGS request Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 19/22] ethtool: provide WoL information " Michal Kubecek
2019-03-28 3:42 ` Florian Fainelli
2019-03-28 10:10 ` Michal Kubecek
2019-03-25 17:08 ` [PATCH net-next v5 20/22] ethtool: set WoL settings with SET_SETTINGS request Michal Kubecek
2019-03-28 3:49 ` Florian Fainelli
2019-03-25 17:08 ` [PATCH net-next v5 21/22] ethtool: provide message level in GET_SETTINGS request Michal Kubecek
2019-03-28 3:46 ` Florian Fainelli
2019-03-25 17:09 ` [PATCH net-next v5 22/22] ethtool: set message level with SET_SETTINGS request Michal Kubecek
2019-03-28 3:48 ` Florian Fainelli
2019-03-27 13:09 ` [PATCH net-next v5 00/22] ethtool netlink interface, part 1 Jiri Pirko
2019-03-27 14:28 ` Michal Kubecek
2019-03-27 15:19 ` Jiri Pirko
2019-03-27 19:12 ` David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=16ffb1fbfa8f54de587ac52f4ff95e5034c590b4.1553532199.git.mkubecek@suse.cz \
--to=mkubecek@suse.cz \
--cc=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=f.fainelli@gmail.com \
--cc=jakub.kicinski@netronome.com \
--cc=jiri@resnulli.us \
--cc=linux-kernel@vger.kernel.org \
--cc=linville@tuxdriver.com \
--cc=netdev@vger.kernel.org \
--cc=stephen@networkplumber.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).